Stable Monthly Housing Costs
When you rent a place to live, you can certainly expect your rent to increase each year or even more often. If you get a fixed rate mortgage when you buy a home, you have the same monthly payment amount for term of the loan (usually thirty years). Even if you get an adjustable rate mortgage, your payment will stay within a certain range for the entire life of the mortgage and interest rates aren't as volatile now as they were in the late seventies and early eighties.
Imagine how much rent might be ten, fifteen, or even thirty years from now? Which makes more sense?
Income Tax Savings
Forced Savings